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| Patents for Carl O. Graves | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,360,671 | Oct. 17, 1944 | A.C. Janke, C.O. Graves, F.S. Haas | Surface Grinder | grinding machines | |
| 2,761,196 | Sep. 04, 1956 | C.O. Graves | Face Mill | milling machine cutters | |
| 2,782,490 | Feb. 26, 1957 | C.O. Graves | Milling Cutter | milling machine cutters | |